This extension allows you to backup your TinyDB data to file and restore it back from the file.
You can do it for every Namespace(Bucket), The default Namespace which a TinyDB use is TinyDB1
Thanks to @chaimk and @Iceflame2a for sponsoring this extension 
!
Please make sure storage permission is given to let it work properly
AIX - com.atomdeveloper.TinyDBBackup.aix (7.9 KB)
Source Code - TinyDBBackup.java (4.1 KB)
Wow So Much Nice Extension
This Extension Will Help A Lot To Load Online TinyDB Am I Right ?
This will help to backup the local TinyDB data to a file and to restore it from file.
Also done by Juan Antonio in 2017
Great extension, it will help us to get some files even when users clear app data. Am i right?
I Mean We Can Update The Files Online And Make It TinyDB
When Screen Initialize Download File From Online Storage
And Restore It Using Your Extension So It Will Be TinyDB
Sorry, didn’t knew about it…
But there is some difference…and now (Just Now) I have made it open source.
Once data is cleared,everything is gone…but you may sync data time to time if app is open to a path which you thing is safe.
thank you i will learn from it
Yeah,you may do it, if data is in readable form.
Very nice extension, very useful.
This extension can be used to sync user offline data which has been stored in Tiny db, so that it can be stored in online databases to restore it again when user wants it.
Professional feature.
Awesome work 
This extension will really help.
Excellent extension. It will be very useful for me.
Thanks.
Great extension BR0.
KEEP IT UP.
thank you for your contribution…
just FYI: there are already 3 similar extensions available, see here
(taken from the extensions directory App Inventor Extensions | Pura Vida Apps)
Taifun
This is brilliant! Thanks atom 
What file types can we use?? I mean .json , .txt etc
